Emily Longeretta Sometimes, a metaphor just works. For Sarah Paulson and her career, it’s a train comparison — something that came up multiple times during our chat about her Emmy nomination for portraying Linda Tripp in “Impeachment: American Crime Story.”“It was the most entirely unexpected thing in the world,” she says of her nom for lead actress in a limited series or anthology — the sole acting mention for the FX series. While she never expected any of her accolades, when she portrayed Marcia Clark in “The People vs.